The goal of the present study was to determine whether there are any statistically significant differences between people with high and people with low scores on visuospatial tests with regard to the prevalence of allergies, left-handedness and creativity. The motivation for the study is based on the Geschwind-Behan-Galaburda theory. According to this theory people with high versus low scores in right hemispheric abilities such as visuospatial abilities differ with regard to the prevalence of various psychosomatic and neuropsychological factors. These differences are attributed to prenatal hypersecretion of testosterone. An empirical study was performed in order to compare the prevalence of allergies and lefthandedness and the creative abilities of people with high scores and people with low scores on visuo-spatial tests. Twenty five male students with high scores on visuo-spatial tests and 25 male students with low scores on visuo-spatial tests served as the experimental subjects. The selection of subjects was done by means of the General Scholastic Aptitude test (GSAT). An allergy questionnaire and handedness questionnaire and four creativity tests served as measuring instruments. Two verbal and two non-verbal creativity tests were included. The data were statistically analysed by means of Wilk's coeffisient Lambda and Student's ttests. The results indicated that there were no statistically significant differences between male students with high scores on visuo-spatial tests and male students with low scores on visuospatial tests with regard to the prevalence of allergies and left-handedness and creative abilities. The present study did not support the Geschwind-Behan-Galaburda theory . The results of a previous study (Benbow, 1986) in which people with different mathematical abilities served as experimental subjects, did support the Geschwind-Behan-Galaburda theory. Another study by Wiley and Goldstein (1991) in which the study of Benbow (1986) was replicated did not find support for the Geschwind-Behan-Galaburda theory. Further research is thus necessary in order to determine the validity of the Geschwind- Behan-Galaburda theory.